Intrinsic Resolution Of Compton Electrons In Cebr3 Scintillator Using Compact Cct

CeBr3 is emerging as one of the best scintillators having properties almost similar to cerium-doped lanthanum halide scintillators. We have measured, for the first time, the intrinsic energy resolution of Compton electrons in a cylindrical 1 '' x 1 '' CeBr3 detector using the sources, namely, Cs-137, Na-22, and Co-60 employing Compton coincidence technique. We have used the PIXIE-4 data acquisition system that makes the measurement setup quite compact. The measurements of intrinsic energy resolution of Compton electrons were made in the energy range of 0.1-1 MeV. The measurements of intrinsic energy resolution of gamma rays were also made, for the comparison. The preliminary results have clearly suggested that delta-ray component is a major contributor to the intrinsic resolution of CeBr3.